WEBVTT 00:00.150 --> 00:06.490 This is that five of the final project in this state, well, that's going to be quite quick and easy. 00:06.510 --> 00:14.810 We are simply going to initialize the LCD screen and print a welcome message for the user for one second, 00:14.820 --> 00:16.540 OK, when we start the application. 00:16.980 --> 00:26.460 So first, I will need to include the library, which is liquid crystal dot h. 00:27.520 --> 00:33.740 Because I'm going to include libraries at the very top of the program, then I need to initialize some 00:34.020 --> 00:34.470 things. 00:34.510 --> 00:35.800 So let's do that here. 00:35.850 --> 00:51.220 Define so exiting out this thing, which is for me a defined scd e pin, which is a form defined as 00:51.240 --> 00:53.130 CD and then default pin. 00:54.580 --> 00:58.870 And we need DeFore and we saw the five. 01:00.080 --> 01:09.590 And we need the six and seven, which are things number six, seven. 01:10.520 --> 01:20.690 Eight and nine, so that the six pins I need for initializing the LCG, let's initialize it here, so 01:20.690 --> 01:22.130 let's create the density. 01:23.150 --> 01:28.850 So I need to do liquid crystal, the same name as the library. 01:28.850 --> 01:34.820 And then let's name this LCD and I need to give six. 01:35.980 --> 01:37.720 Beans first the R. 01:37.770 --> 01:41.110 S, then eat and then defore. 01:43.070 --> 01:50.690 And then let's go back to a new line to make it nicer to read the five, the six. 01:54.520 --> 01:57.700 Discipline, close, parentheses, semicolon. 01:58.660 --> 02:03.180 All right, now we have LCD, we don't need to worry about that anymore. 02:03.220 --> 02:04.630 Let's go to the. 02:06.000 --> 02:15.030 Void setup function now in the void setup, I can do Cazale begin that's initialized here, LCD that 02:15.540 --> 02:18.660 begin with 16 by two. 02:20.480 --> 02:26.840 So then I initialize all the pins, OK, and attach, interrupt and everything, what are you going 02:26.840 --> 02:32.120 to do at the end of the setup is do see that print? 02:32.480 --> 02:38.450 So if I do, I print the cursor is right now at zero and zero, so I don't need to set it. 02:39.940 --> 02:41.990 And let's take initializing. 02:46.290 --> 02:51.990 OK, and then what I'm going to do is to wait for one second, so I'm going to add a delay here, which 02:51.990 --> 02:53.880 is the easiest way to do that. 02:55.410 --> 02:57.900 And then and that clear. 02:59.760 --> 03:06.760 OK, so, again, as I told you before, using delay in the setup may be OK not too long. 03:06.790 --> 03:09.990 OK, for example, once again, two seconds, three seconds. 03:10.530 --> 03:15.480 If you need to wait for something, that's not a problem because any way to set up will be called only 03:15.480 --> 03:15.800 once. 03:16.110 --> 03:18.070 And here is the fate behavior. 03:18.090 --> 03:22.190 OK, but let's say you need to initialize some communication with the sensor. 03:22.200 --> 03:25.980 You need to wait, for example, for five hundred milliseconds. 03:26.250 --> 03:31.950 Then you can print something initializing and then when the communication is ready, then you just, 03:31.950 --> 03:35.050 for example, clear the screen and then you can go to the loop function. 03:35.520 --> 03:41.010 So it's just to show you what you can do, for example, to give some clue to the user that the application 03:41.010 --> 03:44.070 is starting and waiting for something to be said. 03:44.460 --> 03:46.720 And also using that here will be quite nice. 03:46.740 --> 03:51.510 OK, when we start the application, we have a welcome message or one signal and then the application 03:51.510 --> 03:51.900 starts. 03:52.680 --> 03:56.730 So now let's see, let's verify. 03:57.000 --> 03:58.770 We find projects that. 03:58.850 --> 03:59.470 No. 04:02.810 --> 04:03.350 S.. 04:06.040 --> 04:10.810 OK, not any problem, let's check if it's working, let's upload the code. 04:14.330 --> 04:17.330 And you can see initializing and then stop. 04:17.600 --> 04:24.770 OK, so whenever there is a problem here, there is a button we have initializing for one second and 04:24.770 --> 04:29.750 then you can see the application starting with the Yellowhead, which starts to blink. 04:30.400 --> 04:30.820 All right. 04:30.830 --> 04:34.130 So that is the end of this step, which was actually quite small.